My ecore is registered with Epsilon and working fine. I can open a model with MoDisco without problem each time i restart Eclipse and without to register my ecore again.
The problem is when i start Eclipse on a model file opened, it's like Eclipse try to open and display my model before Epsilon is loaded and EPackage is registered.
So, there is a way to tell Eclipse to load the plugin before trying to open the active file? Or the only way is to be sure when i close Eclipse the file open is not a model?